参数资料
型号: LTC6992CDCB-4#TRMPBF
厂商: Linear Technology
文件页数: 18/34页
文件大小: 0K
描述: IC OSC SILICON 1MHZ 6-DFN
产品培训模块: TimerBlox Family Timing Devices
产品目录绘图: LTC699_DFN
特色产品: LTC?6992 TimerBlox?
TimerBlox?
标准包装: 1
系列: TimerBlox®
类型: 振荡器 - 硅
频率: 3.81Hz ~ 1MHz
电源电压: 2.25 V ~ 5.5 V
电流 - 电源: 365µA
工作温度: 0°C ~ 70°C
封装/外壳: 6-WFDFN 裸露焊盘
包装: 标准包装
供应商设备封装: 6-DFN-EP(2x3)
安装类型: 表面贴装
配用: DC1562A-C-ND - BOARD EVAL LTC6992-1
其它名称: LTC6992CDCB-4#TRMPBFDKR
LTC6992-1/LTC6992-2/
LTC6992-3/LTC6992-4
25
69921234fc
Typical applicaTions
Changing Between Two Frequencies
6992 TA05
LTC6992-X
MOD
GND
SET
OUT
V+
DIV
R1
0.1F
R2
RSET
V+
NOTES
WHILE THIS CIRCUIT IS SIMPLER THAN THE CIRCUIT TO THE RIGHT,
ITS FREQUENCY ACCURACY IS WORSE DUE TO THE EFFECT OF
V+ SUPPLY VARIATION FROM SYSTEM TO SYSTEM AND OVER TEMPERATURE.
NOTES
1. WHEN THE NMOSFET IS OFF, THE FREQUENCY IS SET BY RSET = RSET1.
2. WHEN THE NMOSFET IS ON, THE FREQUENCY IS SET BY RSET = RSET1 || RSET2.
3. V+ SUPPLY VARIATION IS NOT A FACTOR AS THE SWITCHING RESISTOR IS
EITHER FLOATING OR CONNECTED TO GROUND.
RVCO
V+
‘HC04
fMAX
fMIN
ANALOG PWM
DUTY CYCLE CONTROL
(0V TO 1V)
LTC6992-X
MOD
GND
SET
OUT
V+
DIV
R1
R2
RSET1
RSET2
V+
ANALOG PWM
DUTY CYCLE CONTROL
(0V TO 1V)
V+
‘HC04
2N7002
fMIN
fMAX
Simple Diode Temperature Sensor
6992 TA06
LTC6992-2
MOD
GND
SET
OUT
V+
DIV
R4
1000k
MOC207M
Q1
OUTPUT
D3
C1
1F
R5
186k
5V
0.1F
5V
LT6003
+10mV/C
5V
R1
130k
R2
50k
R3
130k
ADJUST FOR 50% DUTY CYCLE AT 25°C
+
R7
16.9k
R8
84.5k
R6
45.3k
D1
1N458
R11
422
NDIV = 16
f = 10kHz
PWM OUTPUT FOR ISOLATED MEASUREMENT
+1% DUTY CYCLE CHANGE PER DEGREE C
–10°C TO 65°C RANGE WITH OPTO-ISOLATOR (DC: 15% TO 95%)
R9
365
0.1F
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